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Open Roads Forum  >  Class B - Camping Van Conversions

 > Roadtrek Suburban Hot Water Heater Anode Rod

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1775

NY

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Posted: 06/08/12 03:40pm Link  |  Print  |  Notify Moderator

I went to buy a new Anode Rod for my 2011 Roadtrek 190 with a Suburban hot water heater. What the shop had were magnesium rods. I have read a variety of opinions on aluminum vs. magnesium. I was surprised to see the magnesium rod as I have only seen the Camco in other stores and that one is aluminum.

Is the magnesium rod OK? If so, is there any difference in using a magnesium rod from an aluminum rod?


Roadtrek 190 Popular 2011

Meryl and Me Hit the Road

booster

Minnesota

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Posted: 06/08/12 04:29pm Link  |  Print  |  Notify Moderator

Your original more than likely was magnesium. Most say that magnesium protects the tank better, but you can get smelly water.

bob213

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Posted: 06/08/12 04:38pm Link  |  Print  |  Notify Moderator

I thought you only used aluminum when the magnesium wasn't lasting a full year. Here's a link to a pretty good deal:
anode rod 2pk

My Roadtrek

Tucson, AZ.

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Posted: 06/08/12 05:04pm Link  |  Print  |  Notify Moderator

You don't need to change them until they get about the size of a pencil, and yes magnesium is fine.





1775

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Posted: 06/08/12 10:19pm Link  |  Print  |  Notify Moderator

The very back of my anode rod is down to the wire - this is about an inch from the screw end down- from there the rod is at least a half inch in diameter or more. Do they all corrode like this? It has been a year and I was thinking that I should change it with the end looking as it does. ???

My Roadtrek

Tucson, AZ.

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Posted: 06/09/12 12:51am Link  |  Print  |  Notify Moderator

Yes that's usually the way they go. You must have some hard water there.
We have a water softener, and we always started out with soft water, only replaced the rod twice in 8 years.

PSW

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Posted: 06/09/12 05:54am Link  |  Print  |  Notify Moderator

I just replace ours every spring as a part of "gettin' ready". I figure ten or twelve bucks a year is much cheaper than water heater tank problems.

Also, if you flush out the tank really well when replacing the rod, you may be surprised at all the junk that is in there. Apparently, high mineral content and hard water exacerbates this problem.


PSW
2007 Roadtrek 210 Popular

GailS

Indialantic FL

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Posted: 06/09/12 07:08am Link  |  Print  |  Notify Moderator

We do check ours every year and replace only when necessary which has been twice in 6 years. Our's have been magnesium.

Handbasket

Asheville, NC

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Posted: 06/09/12 07:29am Link  |  Print  |  Notify Moderator

I'm pretty sure that the one in the 3-gallon Suburban in the Tiger is magnesium. It's the original, at 6 1/2 years. I just had it out Monday, and it's about 1/3 consumed.

Jim, "Mo' coffee!"


'06 Tiger CX 'C Minus' on a Silverado 2500HD 4x4, 8.1 & Allison (aka 'Loafer's Glory') www.tigervehicles.com

lorenww

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Posted: 06/09/12 11:34am Link  |  Print  |  Notify Moderator

In saltwater we always used Zinc but you will want magnesium for fresh water.
If your anode rods are getting eaten up, they are doing their job.

Here is a good article to help choose your anode.
http://www.defender.com/html/zincs_info.html

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